Heat transfer

Thermoacoustics is the interaction between temperature, density and pressure variations of acoustic waves. Thermoacoustic heat engines can readily be driven using solar energy or waste heat and they can be controlled using proportional control. They can use heat available at low temperatures which makes it ideal for heat recovery and low power applications. The components included in thermoacoustic engines are usually very simple compared to conventional engines. The device can easily be controlled and maintained.

fluid that transports and stores thermal energy

thumb|400px|Types of recuperator, or cross plate heat exchanger A recuperator is a counter-flow energy recovery heat exchanger that recovers waste heat in the supply and exhaust air streams of an air-handling system or in the exhaust gases of an industrial process. Generally, they extract heat from the exhaust and use it to preheat air entering the combustion system, reducing the need for fuel and boosting the system's energy efficiency.

mechanism, or type of heat transport, in which the fluid motion is not generated by any external source, but only by density differences in the fluid occurring due to temperature gradients

thermal interface material in the form of a soft pad, used in computing

use of thermal energy storage in building design

method for calculating the rate of heat transfer in heat exchangers when fluid inlet and outlet temperatures can not be determined

method of calculating heat transfer in flow systems

Temperature above which almost all solids visibly glow

building material that expands and cures to form a polyurethane foam

type of heat transfer

where fluid motion is generated by an external source

used to describe the type of heat transfer for a surface that has moisture

plant able to produce heat

measure of how well an object, per unit of area, resists conductive flow of heat

A nanofluid is a fluid containing nanometer-sized particles, called nanoparticles. These fluids are engineered colloidal suspensions of nanoparticles in a base fluid. The nanoparticles used in nanofluids are typically made of metals, oxides, carbides, or carbon nanotubes. Common base fluids include water, ethylene glycol, and oil.

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surface that extends from an object to increase heat transfer

Resistance to thermal flow between two materials

thumb | Diagram of a small form closed system mesocosm thumb | Different components of a successful mesocosm

type of temperature

thermal or acoustic insulation used on pipework

proportion in thermal radiation

In biology, kleptothermy is any form of thermoregulation by which an animal shares in the metabolic thermogenesis of another animal. It may or may not be reciprocal, and occurs in both endotherms and ectotherms. One of its forms is huddling. However, kleptothermy can happen between different species that share the same habitat, and can also happen in pre-hatching life where embryos are able to detect thermal changes in the environment.

building material that reflects thermal radiation and reduces heat transfer